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8 Screw in the breather screw plug.
9 After inserting the spring, take the spring's label
from the packaging and stick it below the type
label on the JSAV.
10 Clearly mark the adjusted value of the trip pres-
sure p
on the sticker.
do
Resetting
▷ Ensure that the impulse line is depressurized.
CAUTION
Please observe the following to ensure that the
JSAV is not damaged during resetting:
–
Turn the reset lever gently and do not go further
than specified.
1 Remove the breather screw plug.
2 Press the reset lever and turn through 10° until
resistance can be felt.
~10°
3 Hold the reset lever in this position until the lever
can be easily turned further following pressure
equalization.
4 Press and turn the reset lever until the valve disc
opens and clicks into place.
5
klack
▷ The pin in the measuring unit must be at the top
after the valve disc has clicked into place.
6 Screw in the breather screw plug.
▷ The JSAV is ready for operation.
Replacing the measuring unit
▷ The measuring unit has to be replaced if the
JSAV no longer opens or can no longer be reset.
▷ We recommend cleaning the O-ring seats and
lightly greasing the O-rings with Klüber Nontrop
ZB91 DIN before installation.
1 Depressurize the system.
▷ The measuring unit is supplied with 1 O-ring and
4 screws.
2 Ensure that the JSAV is closed.
3 Remove the breather screw plug.
▷ The pin in the measuring unit must be at the
bottom when the JSAV is closed.
▷ If the JSAV is open, apply pressure to the impulse
line to close the valve.
4 Detach the impulse line from the JSAV.
5
8 Install the new O-ring in the housing.
9 Follow the reverse procedure when reassem-
bling.
10 Connect the impulse line to the JSAV.
11 Check tightness and function, see page 3
(Tightness test) and page 4 (Checking the
function).
GB-5
6
7
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